Hydraulic door hinge

ABSTRACT

The disclosure relates to a door for use in marine environments, the door being rotatable about a support frame on which are mounted hinges secured to the door. The door is raised for rotation of the door by means of sliding the door hinges along the support frame to clear obstructions in front of the door. The door movement is provided preferably by a hydraulic cylinder though a manually operated screw or winch or a hydraulic pneumatic or motor driven winch, screw, rack and pinion etc. can be used.

United States Patent 1191 Kornylak June 28, 1974 [5 HYDRAULIC DOOR HINGE3,315,413 4/1967 Beecher et al 49/334 x Inventor: Andrew T. Kornylak,Hamilton, 3,346,992 10/1967 Lodge 49/255 Ohm Primary ExaminerJ. KarlBell [73] Assignee: Kornylak Corporation, Hamilton, Attorney, Agent, orFirm-Jay M. Cantor Ohio [221 Filed: Nov. 24, 1972 [57] ABSTRACT Thedisclosure relates to a door for use in marine envi- [21] Appl' 309l25ronments, the door being rotatable about a support frame on which aremounted hinges secured to the [52] US. Cl. 49/255 door. The door israised for rotation of the door by [5l] Int. Cl E05f 7/02 means ofsliding the door hinges along the support [58] Field of Search 49/255,334, 190, 234, frame to clear obstructions in front of the door. The49/276 door movement is provided preferably by a hydraulic cylinderthough a manually operated screw or winch [56] References Cited or ahydraulic pneumatic or motor driven winch,

UNITED STATES PATENTS 3/1925 Wilbur 49/255 screw, rack and pinion etc.can be used.

3 Claims, 3 Drawing Figures door equal to the width of the door, orsplit door hinged at both sides and requiring an unobstructed distancethereinfront equal to half of the width of the door; or a verticalsliding door requiring overhead room above the door equal to the heightof the door; or a track guided door similar to the standard garage doorwhose upper edges move forward while the lower edges move up so that inits final position the door is overhead and parallel to the ceiling.Sectional doors are not practical for marine use because it is difficultto make them watertight. Marine type doors, because of their need to befireproof, watertight and resistant to hydrostatic pressure, areconventionally heavy. Therefore a winch or similar device is required tolift a door of this type which is of the vertical opening type andsafety precautions must be taken to prevent accidental dropping of theheavy door. Further disadvantages of the vertically moving doors areobstruction of overhead lighting and interference due to pipes, wiring,air ducts, beams and thelike.

In accordance with the present invention, there is provided a door formarine use which is of the side hinged or split type wherein the door isvertically raised by moving the door along with its hinges along thesupport frame on which the hinges are mounted. The door is moved bymeans of a hydraulic cylinder or the like, preferably mounted on thesupport frame and acting against one of the hinges to raise the hingealong with the door.

It is therefore an object of this invention to provide a door for marineuse capable of opening when obstructed.

It is a further object of this invention to provide a door for marineuse capable of opening when obstructed which is more economical, saferand requires less headroom than prior art doors.

The above objects and still further objects of the invention will becomeapparent to those skilled in the art after consideration of thefollowing preferred embodiment thereof, which is provided by way ofexample and not by way of limitation, wherein:

FIG. I is a top view of a mounted door in accordance with the presentinvention;

FIG. 2 is a front view of the mounted door in accordance with thepresent invention; and

FIG. 3 is a side view of the mounted door in accordance with the presentinvention.

Referring now to the figures, there is shown a deck I having anobstructing machine such as a horizontal conveyor or the like 3 mountedthereon. A door frame or doorway flange 5 which can be a bulkhead wallof a ship or the like of well known type extending to the deck 1 has asupport frame 7 mounted therearound. A

further flange 12 is secured to the wall or the like over the door frame5 to which is secured a hydraulic cylinder 9. The door 11 has a pair ofhinges l3 and 15 secured thereto, the hinges being secured to androtatable in members 18 and 20 which are mounted on a sliding plate 22.The sliding plate 22 moves in a guide 24 of a slide block 26. The guide24 is secured to door frame 5. The hydraulic cylinder 9 has a shaft 18extending therefrom which is secured to plate 22 at point 28. The door11 is adapted to be moved by operation of the hydraulic cylinder 9 tothe position shown in phantom in FIG. 2. There is also provided a dog 17for sealing the door 11 by compressing watertight gasket 30. A controldevice 19 composed of push buttons 21 for controlling a pump 23 whichdrives the hydraulic cylinder 9 is also provided.

In operation, when the door 11 is obstructed by an obstruction 3, dog 17is opened to free the door seal, the push button means 21 is operated,thereby operating the pump 23 and causing the hydraulic cylinder tooperate in well known manner. The cylinder 9 operates on the shaft 18,causing the shaft to rise vertically to the position shown in phantom inFIG. 2. Upward movement of the shaft 18 causes the plate 22, member 18and 20, hinges l3 and 15 and door 11 which are secured to the shaft tomove vertically also. The door 11 can now be rotated about the hinges l3and 15 above the obstruction 3 to. the open position as shown in phantomin FIG. I. The door 11 can be returned to its original position, eitherin the open or closed condition by further operation of the push button21.

Itcan be seen that there is provided a door and door hinge which issimple, economic to produce and which is capable of opening even when anobstruction is present.

It should be understood that other motive means, for the shape 18 can beused, such as for example, a manually pumped hydraulic system, manuallyoperated screw or winch means or power operated pneumatic cylinders ormotor driven winches, screws, racks and pinions and the like as well asthe specific embodiment described.

Though the invention has been described with respect to specificpreferred embodiments thereof, many variations and modifications willbecome apparent to those skilled in the art. It is therefore theintention that the appended claims be interpreted as broadly as possiblein view of the prior art to include all such variations andmodifications.

What is claimed is: 1. A door hinge mounting comprising: a wall havingan opening therethrough, a guide element fixed to the wall adjacent anedge of the opening, a door for covering the opening, a door supportmember hinged to said door for relative swinging movements of said doorand support,

said support member being mounted on said guide member for movementtherealong only in a direction parallel to the hinge axis for coveringor uncovering at least a portion of the opening,

and power means connected to said support member for moving it along theguide element.

2. A door hinge mounting according to claim 1 wherein the power means isa hydraulic cylinder secured to said wall.

3. A door hinge mounting according to claim 2 further including adriving member operated by said cylinder movable parallel to the hingeaxis and connected to the door support member for effecting saidmovement thereof.

i I I I i

1. A door hinge mounting comprising: a wall having an openingtherethrough, a guide element fixed to the wall adjacent an edge of theopening, a door for covering the opening, a door support member hingedto said door for relative swinging movements of said door and support,said support member being mounted on said guide member for movementtherealong only in a direction parallel to the hinge axis for coveringor uncovering at least a portion of the opening, and power meansconnected to said support member for moving it along the guide element.2. A door hinge mounting according to claim 1 wherein the power means isa hydraulic cylinder secured to said wall.
 3. A door hinge mountingaccording to claim 2 further including a driving member operated by saidcylinder movable parallel to the hinge axis and connected to the doorsupport member for effecting said movement thereof.